From:	Erik Max Francis <max AT alcyone DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Problem with fstreams...
Date:	Wed, 03 Sep 1997 09:37:14 -0700
Organization:	Alcyone Systems
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Message-ID:	<340D923A.5D72DAB0@alcyone.com>
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Paul Derbyshire wrote:

> How do the enum elements BINARY and so forth become members of ios, as
> in
> ios::, and not of some enum? Normally the :: thing only applies to
> member
> functions and instance variables, not to enums. Is the enum actually
> inside the class? Can a class contain structs and subclasses actually
> inside itself so they are only defined in the scope of the class, for
> naming purposes?

Yes.  In C++ if you have full scoping, so lexical elements can be
defined inside classes:

    class C
    {
      public:
        struct S { int i; };

        enum E { e1, e2 };
    };

Inside the scope of the class, you can refer to these things as S and E,
but outside you must refer to them as C::S and C::E (and the enum names
as E::e1 and E::e2).

-- 
          Erik Max Francis, &tSftDotIotE / mailto:max AT alcyone DOT com
                        Alcyone Systems / http://www.alcyone.com/max/
   San Jose, California, United States / icbm://37.20.07n/121.53.38w
                                      \
                  "War is like love; / it always finds a way."
                                    / Bertolt Brecht

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